baber/WOPTO huggingface dataset:
Patent GB-1002856-A (GB)
Title: Pyrrolidine derivatives
Inventor: YOUNG DONALD PETER
IPC: C07D403/04
Filed: 1960-12-03
Abstract: The invention comprises compounds of general formula <FORM:1002856/C2/1> wherein X represents the radical of a cyclic imide of an aromatic, substituted aromatic, aliphatic or substituted aliphatic dicarboxylic acid attached to the pyrrolidine ring by its imido-nitrogen atom, and R represents hydrogen or a lower (1-7 C) aliphatic group; and their preparation by treatment of an X-substituted succinic acid or functional derivative thereof to effect ring closure through a nitrogen atom, in particular by heating the mono- or diamide with a dehydrating agent or by treatment of the acid or derivative with a urea, amine or mono- or di-carboxylic acid amide.  Isomers are obtained using appropriate starting materials. Subsequent modification of substituents X and R is mentioned particularly by nitration, which may be followed by reduction, of a phthalimido substituent X, and by 1-hydroxyethylation.  g  - N - (Methyl or ethyl) - a  - N - phthalyl - asparagines are prepared from N-phthalyl-asparagine and methyl- and ethyl-amines.
Patent GB-920979-A (GB)
Title: Improvements in lamps for vehicles
Inventor: CUNNINGHAM ERNEST ARTHUR
IPC: B60Q1/26
Filed: 1960-12-03
Abstract: 920,979. Lamp glasses. SEDAN PRODUCTS Ltd. Sept. 28, 1961 [Dec. 3, 1960], No. 41674/60. Class 75 (2). A glass for vehicle lamps is of hollow block form having a substantially plane wall presenting the major area of the glass and surrounded by side walls, the interior surface of all the walls being ridged to diffuse the light. The ridges 12 on the plane wall may be in the form of concentric circles about a spherical lenticular area behind which the lamp filament is situated. The side walls 6, 7, 8, 9 are provided with ridges 14 normal to the plane of the wall 5 and similarly spaced to the ridges 12. The glass may be generally triangular for use with a frame as described in Specification 912,648.
Patent GB-919757-A (GB)
Title: Process for polymerizing n-vinyl lactams
IPC: C08F26/06
Filed: 1961-11-23
Abstract: An improvement in a process for the preparation of polymerized N-vinyl lactams comprises adding a quantity of an N-vinyl lactam monomer at a uniform rate over a period of at least half an hour to an aqueous neutral to alkaline polymerizing medium kept at boiling temperature, concurrently adding to the medium at a uniform rate a quantity of azo polymerization catalyst amounting to 0,1 to 3% of the monomer and heating at polymerization temperature.  The aqueous polymerization medium may be an aqueous solution of a weak acid at a concentration 0,05 to 1%, it is preferably maintained at a pH of 8 to 12.  The catalyst may be added as an aqueous slurry in an aqueous solution of the polymer to be prepared in the reaction mixture. N-vinyl pyrrolidone is the preferred lactam.
Patent GB-1169708-A (GB)
Title: Process for Making Epoxy Cellular Plastics
IPC: C08J9/10
Filed: 1966-09-20
Abstract: 1,169,708. Foamed epoxy resins. FARBWERKE HOECHST A.G. 20 Sept., 1966 [23 Sept., 1965], No. 41995/66. Headings C3B and C3C. Epoxy cellular plastics are prepared by polymerizing at least one compound containing two or more epoxy groups per molecule in the presence of a surface-active agent and at least one aryldiazonium salt of a Lewis Acid which acts as polymerization catalyst and sole blowing agent. The epoxy compound may be a di- or polyglycidyl ether of a di- or poly-nuclear phenol, or of a di- or poly-hydric aliphatic, cycloaliphatic or araliphatic alcohol; preferred phenols are pyrocatechol, resorcinol, hydroquinone, bis - (4 - hydroxyphenyl)methane, bis- (4 - hydroxyphenyl) - ethane, bis - (4 - hydroxyphenyl) butane, bis - (4 - hydroxyphenyl - 2,3,5,6 - tetrachlorophenyl) - 2,2 - propane, 4,4<SP>1</SP> - dioxybenzophenone, bis - (4 - hydroxyphenyl) - cyclohexane, bis - (4 - hydroxphenyl) - phenylmethane, bis - (4 - hydroxy - 3- methyl - phenyl) - 2,2 - propane, bis - (4 - hydroxy - 3 - tert. butyl - phenyl) - 2,2 - propane, tris - (4 - hydroxyphenyl) - methane, a bis - (4- hydroxyphenyl) - pentane acid ester, and bis- (4 - hydroxyphenyl) - 2,2 - propane; preferred alcohols are ethylene glycol 1,4-butanediol, polyethylene glycols, cyclohexanediol-1,4, dimethylolcyclohexanes, glycerol, hexanetriols, and pentaerythritol. An epoxy compound having only one epoxy group per molecule may optionally be included; this may be a glycidyl ether of a phenol, e.g. of 2,4,6-tribromophenol which is fire-resistant. The aryl diazonium salt of a Lewis acid may be a substituted or unsubstituted aryl diazonium fluoborate, or may be the salt of tin tetrachloride, aluminium chloride, zinc chloride, zinc bromide, ferric chloride, or titanium tetrachloride, and is present in the reation mixture in 0À1 to 10% proportions by weight; the reaction mixture is heated between 30‹ and 150‹ C. to decompose the diazonium salt which releases nitrogen as the effective blowing agent. An amount not exceeding 3% by weight of a Lewis base may be added to control the amount of free Lewis acid acting as curing agent; suitable bases include ethers, thioethers, amines, acid amides, oximes and nitriles. 1 to 20 mole per cent of a compound that undergoes cationic polymerization may be incorporated; suitable are cyclic ethers, cyclic acetals, cyclic carboxylic anhydrides and copolymers of maleic anhydride, itaconic anhydride or citraconic anhydride with styrene, vinyl acetate, vinyl propionate, methyl acrylate, methyl methacrylate vinyl chloride, vinylidene chloride isobutylene ethylene or propylene. The surfactant present in up to 3% proportions by weight, may be a polysiloxane, an ethoxylated fatty alcohol amine, acid or rhenol, a fatty acid sulphate, an alkyl or aryl sulphonate, a paraffin oil or wax or a block copolymer of ethylene and propylene oxides.
Patent GB-1065527-A (GB)
Title: Tobacco manufacture
IPC: A24B15/12
Filed: 1963-10-24
Abstract: A process of manufacturing a coherent tobacco product for smoking comprises steeping tobacco in water, the major portion by weight of the tobacco being retained on a 60-mesh screen, maintaining the aqueous suspension of tobacco at a temperature in the range of 140-200 DEG F. for a period of at least two hours, wet-grinding the thus treated aqueous suspension of tobacco until the particles thereof retained on a 100-mesh screen of a Clark Classifier are not more than 17% by weight but not less than 9% by weight of the tobacco on a dry basis, and converting the resulting wet-ground tobacco pulp into a coherent tobacco product. Preferably the temperature of the aqueous suspension of tobacco is maintained in the range of 160-180 DEG F. for a period of 4-20 hours, the major portion by weight of the tobacco is retained on a 40-mesh screen, and the particles of the wet-ground tobacco pulp which are retained on the 100-mesh screen are not more than 15% by weight of the tobacco on a dry basis.  The tobacco is a blend of cigarette tobacco including a substantial portion of flue-cured tobacco.  The particles of the wet-ground tobacco pulp which pass through a 100-mesh screen but are retained on a 150-mesh screen of a Clark Classifier are preferably approximately 2% by weight of the tobacco on a dry basis, and the particles of the pulp which pass through the 150-mesh screen but are retained on a 200-mesh screen total 2 to 3 1/2 times the 2% fraction of coarser particles.  Quantitative examples are given.
Patent GB-965555-A (GB)
Title: Improvements in electric timepieces
IPC: G04C3/06
Filed: 1960-12-07
Abstract: 965,555. Electric timepieces. JAHRESUHREN-FABRIK G.m.b.H. AUG. SCHATZ & SÍHNE Dec. 7, 1960 [Dec. 15, 1959], No. 42056/60. Heading G3T. In an electric timepiece the balance carries a permanent magnet 1, Fig. 1, which moves within a closed low-remanence iron core 2 on which is wound a coil or coils 3, 4 which on energization create north and south poles as shown to impulse the magnet. The coil energization may be effected by a transistor circuit e.g. a multivibrator or blocking oscillator. The balance may carry a capacitor plate 8, Fig. 4, which co-operates with a stationary plate 9 to trigger a transistor oscillator. The capacitor may be replaced by photosensitive or radiation-sensitive means.
Patent GB-1325608-A (GB)
Title: Process fir increasing the diffraction efficiency of  holograms
IPC: G03H1/00
Filed: 1970-09-03
Abstract: 1325608 Holography AGFA GEVAERT A G 3 Sept 1970 [6 Sept 1969] 42199/70 Heading G2J The diffraction efficiency of a hologram (defined) is increased by reconstructing the image from the hologram using a reconstruction wave whose angle of incidence differs from that of the critical angle of total reflection by a maximum of Œ 20 degrees. The reconstruction wave may encounter the boundary surface of the hologram from an optically denser or it may enter the hologram layer and subsequently encounter the boundary between the hologram layer and an optically thinner medium. The reconstruction wave is preferably plane polarized with its electric field vector oscillating in the plane of incidence of the wave. The reconstruction wave may either be a homogeneous wave or a surface wave. It is preferred that in the formation of the hologram the angle of incidence of the reference wave equal the critical angle of total reflection.
Patent GB-1342216-A (GB)
Title: Vehicle steering gear
IPC: B62D1/18
Filed: 1972-09-12
Abstract: 1342216 Steering column SOC ANON AUTOMOBILES CITROEN 12 Sept 1972 [29 Sept 1971] 42235/72 Heading B7H A safety steering arrangement includes a steering column formed by three non-aligned shafts 5, 7, 8 joined end to end by universal joints 10 and including a first shaft 7 connected to an easily displaceable part of the vehicle 1, a second shaft 5 mounted in bearings 6 in a more rigid part 2 of the vehicle, e.g. a bulkhead, and an intermediate shaft 8, and means mounted on a rigid part of the vehicle between the ends of the intermediate shaft 8 which forms a fulcrum about which the intermediate shaft pivots upon displacement of the part 1, e.g. in the event of a collision, to cause movement of the steering wheel 4 away from the driver. The easily displaceable part 1 may be an end portion of the chassis on which are mounted the engine (not shown), road wheels and rack and pinion mechanism 3 and which is displaced in the direction of arrow F (Fig. 1) in the event of a collision. In a first embodiment the fulcrum is formed by an abutment 12 mounted on a bulkhead. In the event of a collision the shaft 7 is displaced to position 7a, the shaft 8 pivots about abutment 12 to position 8a and the shaft 5 and steering wheel 4 move away from the driver (in direction of arrow G) to positions 5a and 4a respectively. In a second embodiment (Fig. 3a) the shaft 8 is mounted in a bearing 19 which is pivotally connected by pivot pin 23 to a bracket 20 on the bulkhead 2. In a modification (not shown) the bearing 19 is connected to the bulkhead 2 by deformable lugs which allow the shaft 8 to pivot to position 8a.
Patent GB-896164-A (GB)
Title: A device comprising air oiling means for use in an air supply line
IPC: F16N7/34
Filed: 1959-12-14
Abstract: 896,164. Lubricating. REGIE NATIONALE DES USINES RENAULT. Dec. 14, 1959 [Dec. 31, 1958; Feb. 27, 1959], No. 42428/59. Class 12 (3). An air oiling means comprises, Fig. 1, a cylinder 20 of synthetic plastics material clamped between a manifold 86, having a recess 21, and a cap 38, having a recess 22, by a central tube 25 which is screwably attached to a neck portion 27 of the manifold 86 and to a boss 28 of the cap 38. A jet member 26 is positioned across an air passage 96 in the manifold, the passage 96 being connected to an air-line at 65, 66. The jet member 26 is mounted in a bore 93 which connects the passage 96 to the tube 25. Oil is forced from a reservoir 97 by air pressure and is conveyed through a passage 30 in the cap 38, past an obturating member 53 and along a passage 57 to a rod 98, having a screw-threaded portion 99 extending along at least part of its length. The rod is fitted without clearance into the plain bore of the tube 25 through which the oil rises to a jet-needle 31, having an orifice or orifices which open into the passage 96; said rod 98 forms a helical path for the oil so as to retard the flow thereof and also to maintain a reserve in the tube 25. Slots in the ends of the rod 98 facilitate the entry of oil into the screw-threads. The jet-body 26 has a toroidal gasket 92 which seals it in a cavity 93 of the head 86 and seals are provided between the manifold and the tube 20, and between the latter and the cap 38. A passage 80, which is reduced at 94, is provided in head 86 of the manifold to connect the air-inlet with a chamber 39, which supplies air to the jet and to the reservoir 97, via a passage 40, Fig. 3, in the manifold. A head 95 of the needle has a downwardly-inclined lip formed along its lower peripheral edge, which acts as a seal when the needle is tightened home. In a compact unit, as shown in Fig. 5, air is fed through an inlet pipe 67 and is whirled around a filter 68 in a chamber 69. The filter comprises a baffle which deflects the air so that it flows round the filter and allows impurities to impinge the wall of the chamber 69 and fall to the bottom thereof. The air then flows through passages 72, 74 and is supplied with oil by a jet-member 103. The oil is pressurised by air supplied to a reservoir 78 through a tube 77 and is obturated by a member 101, connected to the reservoir by a passage 102. The jet-member 103 has an integral scew-threaded portion 105, which forms the path for the oil. In another embodiment the jet-body 26 houses a tube 122, Fig. 9, having radial holes therein which coincide with ports 114 in the body 26, and the tube 122 receives a threaded rod 126. In use the oil passes up the central tube 25, along threads of the rod 126, through the holes in tube 122 and ports 114, and into the air outlet pipe.
Patent GB-1438347-A (GB)
Title: Detergent compositions containing a foam-depressant substance
IPC: C11D1/04
Filed: 1973-09-11
Abstract: 1438347 Foam-depressant compositions isomerizing long chain olefins CHEMISCHE WERKE HULS AG 11 Sept 1973 [12 Sept 1972] 42663/73 Headings C5D and C5E [Also in Division C2] Weakly-foaming detergent compositions comprise a sulphate or sulphonate detergent and, as a foam-depressant, one or more alkali metal or organic base salts of a saturated fatty acid of chain length C 14  to C 21  which has been manufactured by the hydroformylation of a C 13  to C 20  linear olefin in the presence of a rhodium catalyst and oxidation of the resulting aldehyde. The compositions may contain 2À5 to 60À0% by weight of the fatty acid salts, based on the detergent. The fatty acid salts have greater foam-depressant action than soaps of natural fatty acids. C 15 , C 16  and C 18  α-olefins are subjected to double bond isomerization by treatment with Co naphthenate in the presence of carbon monoxide under pressure.
Patent GB-1241318-A (GB)
Title: Adjusting device
IPC: B60N2/225
Filed: 1968-09-10
Abstract: 1,241,318. Pivot assembly. RECARO A.G. 10 Sept., 1968 [15 Sept., 1967], No. 43007/68. Heading E2F. A pivot assembly for, e.g. a car seat, comprises two circular or part circular locking members each having opposed abutment faces defining a narrowing space therebetween the shape of which remains constant when the members move on adjusting the seat, one of the members, in use, being rigidly connected to one seat part; and a wedge shaped member corresponding to the shape of and movable on a member relative to the space to engage and wedge the abutment faces. As shown, locking members 4 and 5 comprise gears, the member 4 being rigidly connected to the seat part 2, the member 5 being rotatable about a fixed guide member 6, the centres of the locking members being relatively displaced. Wedge members 7 and 8 are movable lengthwise in the space by a cam plate 9 having slots engaging pins 8', 7' on the wedges and operated by a handle 11 and spring 12 or by a hand wheel, Fig. 6 (not shown). The wedge members may move transversely of the space, the abutment surfaces 125' and 126' and wedge 107 being bevelled, Fig. 5. Only one wedge, which moves transversely into the widest part of the space, may be provided, the abutment surfaces being formed by ring segments 125 and 126 coaxially formed on the sides of the locking members 104 and 105. The wedge 107 may have a coating of a high strength elastic material. The locking members need not engage each other, Fig. 8 (not shown). Similar devices having cam plates interconnected through a tube 10, may be provided on each side of a seat.
Patent GB-1057383-A (GB)
Title: High tensile strength borosilicate glass compositions
Inventor: THOMAS GEORGE LINDSEY
IPC: C03C13/00
Filed: 1963-11-05
Abstract: A glass composition consists essentially, in per cent by weight, of: SiO2, 50.0-60.0; Li2O, 0.1-1.0; B2O3, 5.0-10.0; MgO, 11.0-18.0 Sb2O,3 0.0-1.0; Al2O3, 18.0-25.0; Fe2O3, 0.0-2.0; the ratio of Al2O3 to MgO ranging from 1.0 to 2.2 Na2O and K2O may be used in addition to Li2O. The composition may be melted, e.g. at 2675 DEG  F., formed into cullet or marbles, which may be remelted at e.g 2500 DEG  F. and drawn into fibres of high tensile strength by known method, e.g. through a platinum nozzle.  The fibres may be coated with a finish compatible with epoxy resin, and formed into yarn, which may then be coated with epoxy resin.  The glass fibres may be used to reinforce artficial resin, e.g. for the manufacture of pressure bottles and tanks.
Patent GB-1520636-A (GB)
Title: Bath casings
IPC: A47K3/16
Filed: 1975-10-09
Abstract: 1520636 Panelling and supports for baths J F HARRISON 9 Oct 1975 [9 Oct 1974] 43678/74 Heading A4N A bath 1 is supported by a rigid framework including a plurality of horizontally extending rim bearers 4 to which side walls in the form of panels 3 are attached, and floor bearers either in the form of horizontally extending members 5 or metal brackets 5A secured to the end panels 3. The bearers 4 are arranged to support the lowermost edges of the outwardly directed rims of the bath 1. The bearers 4 may be stepped rails with a resilient strip (6), Fig. 2 (not shown) between the bath rim 2 and the rail. One rail, Fig. 3 (not shown) may be secured to a wall by means of a bracket (8) and plugs (9), a metal or plastics trim strip (7) sealing the junction of the rim 2 and the panel or wall.
Patent GB-985782-A (GB)
Title: Improvements in processes and apparatus for preparing deuterium-enriched ammonia by isothermal isotope exchange
IPC: C01C1/04
Filed: 1961-12-06
Abstract: Deuterium-enriched ammonia is obtained by isothermal isotopic deuterium exchange in one or more reactors between liquid ammonia and ammonia synthesis gas containing deuterium, in the presence of a catalyst in solution in the liquid ammonia, circulating continuously in the reactor or reactors, at least one catalyst reinjection loop being connected to at least one of the reactors; in each loop the catalyst leaving the reactors is recovered in a dry condition, and is redissolved in a part of the liquid ammonia supplied to the top of the reactor or reactors to form a concentrated solution which is passed in counter-current to the ammonia synthesis gas withdrawn from the top of the reactor or reactors; this concentrated solution is subsequently injected into the remainder of the ammonia supply to the reactor or reactors, and the gaseous mixture is reinjected at a point of iso-concentration of deuterium.  In Fig. 3 a catalyst injection loop comprises an evaporator 8 and an auxiliary reactor assembly 10, and is coupled to two reactor assemblies 1 and 2. Ammonia synthesis gas enters at 5, the deuterium-enriched fraction of ammonia is drawn off at 6, and the deterium-impoverished fraction of ammonia is drawn off at 7.  Catalyst delivered from the bottom of reactor 2 is dried in evaporator 8, and the resulting catalyst-free ammonia is delivered to unit 3, which decomposes the <PICT:0985782/C1/1> ammonia to form ammonia synthesis gas which enters reaction assembly 2 at the bottom. Synthesis unit 4 supplies deuterium-poor liquid ammonia to the top of reactor assembly 1.  The catalyst from 8 is redissolved in a fraction of the liquid ammonia tapped from synthesis unit 4 and the solution is delivered to a third, auxiliary, reactor assembly 10 where it is impoverished in deuterium by exchange with gas withdrawn from the top of 1.  The catalyst solution is then injected at 9 into the remainder of the ammonia supply which enters 1.  The ammonia synthesis gas leaving 10 is reinjected e.g. into 2 at point 11.  In Fig. 4 (not shown) two catalyst reinjection loops as described above are employed. The catalyst and liquid ammonia from each reactor assembly (1 and 2) are separated and these two products are treated as described above.  Specification 952,335 is referred to.
Patent GB-1079669-A (GB)
Title: Improvements in shuttering for reinforced concrete ceilings
IPC: E04G11/46
Filed: 1964-10-27
Abstract: 1,079,669. Shuttering for casting ceilings. W. RISCHMULLER. Oct. 27, 1964 [Nov. 5, 1963; Nov. 9, 1963; June 25, 1964], No. 43865/64. Heading E1S. Shuttering for casting ribbed ceilings having recesses shaped as the frustum of a pyramid comprises two or more superimposed shells 2', 2" the edges of the lower or both shells extending beneath the ribs as far the axes of the ribs and the lower shell 2' or both shells being recovered after casting. The lower shell is strengthened by ribs or ducts 4 which may be used for hot air, compressed air or evacuation. Clamps 15 secured to two adjacent shells 2' are secured together by a bolt 17 arid clamp a supporting girder 16. Pockets 5 and holes 6 assists release of the shelve 2' Blocks may be used to close the spaces between the shells in one direction so as to cast a ceiling with ribs only in the other direction.
Patent GB-1074347-A (GB)
Title: Benzoxazine derivatives
IPC: C07D265/36
Filed: 1964-10-28
Abstract: The invention comprises compounds of the general formula <FORM:1074347/C2/1> wherein X and Y are hydrogen, halogen, nitro, hydroxy, lower alkyl or alkoxy of 1 to 4 carbon atoms, sulphonic acid or sulphonic acid salts (with inorganic or organic bases), and the preparation thereof by condensing a 2-aminophenol of the formula <FORM:1074347/C2/2> with a compound of the general formula <FORM:1074347/C2/3> wherein R is lower alkyl, optionally with the addition of a base in the case where X or Y is a sulphonic acid group.  Pharmaceutical compositions, e.g. tablets, capsules, pills, syrups, elixirs, injectable solutions and suspensions, suppositories, and animal feedstuffs, having tranquillizing and anti-neoplasm activity, comprise the compounds of the invention together with a pharmaceutically acceptable carrier.  The compounds may also be used as light filters, e.g. in solutions, suspensions or ointments.
Patent GB-949259-A (GB)
Title: Terminal arrangement
Inventor: BECK WILLIAM ERNEST
IPC: H02K5/22
Filed: 1961-12-08
Abstract: 949,259. Terminal boxes. BRUCE PEEBLES & CO. Ltd. Dec. 8, 1961, No. 44114/61. Heading H2E. In a terminal arrangement earthed metal plates are provided between conductors so that arcing the earth is possible but not arcing between conductors. As shown, cables 22 enter the terminal box by way of chamber 12 containing insulating compound and glands 24 in an earthed plate 25. In the box each cable is attached to a terminal of the type described in Specification 942,704. Between the centre conductor and terminal and each adjacent conductor and terminal is positioned an earthed plate 31 welded to a semi-cylindrical plate 28 bolted to lugs on the walls 15 and abutting further welded plates 29. Further plates 32 welded to a part of the box complete the screening. The box is provided with a lid 16 and base 14 both sealed against the entry of water by gaskets and is bolted to the casing of an electrical machine.